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OEM Carrier Contactor 2-Pole 24V Coil for C4850C48AY05021
Carrier

OEM Carrier Contactor 2-Pole 24V Coil for C4850C48AY05021

SKU: CARRIE-C4850C48AY05021-CONTACTOR-HN53CB115 Brand: Carrier

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

OEM Carrier 2-Pole Contactor 24V Coil for Model C4850C48AY05021

This is the OEM factory-replacement contactor for the Carrier C4850C48AY05021 packaged unit. The contactor is a high-voltage relay that receives a 24V signal from the thermostat and closes the circuit to send line voltage to the compressor and condenser fan motor. When it fails, the most common symptoms include the system failing to start entirely, the compressor humming without running, or the unit tripping the breaker repeatedly. Worn or pitted contacts are often visible on inspection and are a leading cause of compressor damage if left unaddressed.

  • Specs: 2-Pole design | 24V AC coil voltage | Rated for line voltage compressor and fan motor loads | OEM part numbers HN53CB115 and HN53HF122 — verify your existing part number before ordering
  • OEM vs Generic: OEM Carrier contactors feature factory-spec silver-alloy contact tips rated to exact amperage thresholds. Generic contactors often use lower-grade contacts that pit and arc prematurely, risking compressor damage and callback visits.
  • Install difficulty: 2/5 — Shut off power at both the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, 1/4" nut driver, needle-nose pliers, and a multimeter to confirm voltage drop across contacts. Always photograph existing wiring before disconnecting terminals.
  • Warranty: 1-year OEM factory warranty. Orders placed by 3 PM local time ship same business day from our climate-controlled warehouse.

Compatibility: Designed specifically for the Carrier C4850C48AY05021 packaged unit. This listing covers both OEM part numbers HN53CB115 and HN53HF122 — check the part number printed on your existing contactor body to confirm the correct variant. If you are unsure, our HVAC parts specialists can verify fitment before you order. Add to cart now and get same-day shipping on this in-stock OEM part.

Shipping Information

  • Orders placed before 3PM CST ship same business day
  • Standard delivery: 2-5 business days
  • Express shipping available at checkout
  • Free shipping on orders over $75
  • Tracking number emailed upon shipment

Return Policy

  • 30-day returns on unused parts in original packaging
  • Electrical parts (capacitors, contactors, control boards) are final sale once installed
  • Email info@nationalhvacparts.com to initiate a return
  • Refunds processed within 5-7 business days

Frequently Asked Questions

Does this Contactor fit my Carrier C4850C48AY05021?
Yes. This is the factory-specified OEM contactor for the Carrier C4850C48AY05021. It is a direct drop-in replacement that fits without modification. Always verify the model number on your equipment nameplate before ordering.
How do I replace the contactor on my Carrier C4850C48AY05021?
Difficulty: Medium (30–45 min)
Step 1: Turn off breaker. Step 2: Open condensing unit panel. Step 3: Photograph ALL wiring on the contactor. Step 4: Label each wire with tape. Step 5: Disconnect wires and remove old contactor. Step 6: Mount new contactor, reconnect wires matching your photo. Step 7: Restore power and test.
My AC clicks but the compressor won’t turn on. What’s wrong?
Clicking from the outdoor unit without the compressor starting = worn contactor. The contactor sends power to the compressor. When its contacts are pitted, it clicks but can’t make solid contact. Look for: visible pitting/burn marks on the contactor face, intermittent operation, or buzzing.
Is this contactor compatible with Bryant or Payne too?
Many Carrier parts are cross-compatible with Bryant and Payne since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across brand labels with different model numbers. To verify: check your Bryant or Payne equipment service manual for cross-compatible part numbers, or email info@nationalhvacparts.com with your model number.
Should I use OEM or aftermarket for my Carrier contactor?
OEM recommended for reliability and warranty compatibility. OEM parts match exact factory specifications for proper fit, performance, and safety. While aftermarket alternatives cost less upfront, the risk of improper fit and reduced lifespan usually makes OEM the better value long-term.
How fast does National HVAC Parts ship?
Orders placed before 3:00 PM CST ship the same business day. Standard delivery is 2–5 business days anywhere in the continental United States. Express shipping available at checkout. We ship from Houston, TX to all 50 states. 30-day return policy on all parts.
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Mike Rivera
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